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A multi-band body-worn distributed exposure meter for personal radio-frequency dosimetry in diffuse indoor environments

(2019) IEEE SENSORS JOURNAL. 19(16). p.6927-6937
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Abstract
A multi-band body-worn distributed exposure meter (BWDM) is designed and calibrated for diffuse fields in a reverberation chamber (RC) for personal exposure assessment in indoor environments. The BWDM uses 22 nodes distributed over the torso and measures the incident power density (S-inc) on body for 11 telecommunication bands in the frequency range of 790-5513 MHz. In order to calibrate the measurement device in diffuse fields, a protocol is proposed for on-body calibration of the BWDM. This protocol is applicable to wearable personal exposure meters in general. The BWDM and the proposed calibration protocol are validated in five indoor locations and five frequency hands (the downlink bands at 800, 900, 1800, and 2100 MHz as well as Wi-Fi 2 GHz) using a tri-axial broadband antenna and a spectrum analyzer (SA). The calibration shows that the BWDM has a relatively low measurement uncertainty with a 68% confidence interval on its antenna apertures, in the range 3.4-5.5 dB. A maximum difference of 0.9 dB is obtained for the total exposure in the test areas between the measurements of the BWDM and SA, which is an excellent agreement.
Keywords
CALIBRATION, EXPOSIMETERS, UNCERTAINTIES, Wearable, radio-frequency, personal exposure, dosimetry, indoor, reverberation chamber

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Citation

Please use this url to cite or link to this publication:

Chicago
Aminzadeh, Reza, Arno Thielens, Davy Paul Gaillot, Martine Lienard, Lamine Kone, Sam Agneessens, Patrick Van Torre, et al. 2019. “A Multi-band Body-worn Distributed Exposure Meter for Personal Radio-frequency Dosimetry in Diffuse Indoor Environments.” Ieee Sensors Journal 19 (16): 6927–6937.
APA
Aminzadeh, R., Thielens, A., Gaillot, D. P., Lienard, M., Kone, L., Agneessens, S., Van Torre, P., et al. (2019). A multi-band body-worn distributed exposure meter for personal radio-frequency dosimetry in diffuse indoor environments. IEEE SENSORS JOURNAL, 19(16), 6927–6937.
Vancouver
1.
Aminzadeh R, Thielens A, Gaillot DP, Lienard M, Kone L, Agneessens S, et al. A multi-band body-worn distributed exposure meter for personal radio-frequency dosimetry in diffuse indoor environments. IEEE SENSORS JOURNAL. Piscataway: Ieee-inst Electrical Electronics Engineers Inc; 2019;19(16):6927–37.
MLA
Aminzadeh, Reza et al. “A Multi-band Body-worn Distributed Exposure Meter for Personal Radio-frequency Dosimetry in Diffuse Indoor Environments.” IEEE SENSORS JOURNAL 19.16 (2019): 6927–6937. Print.
@article{8624724,
  abstract     = {A multi-band body-worn distributed exposure meter (BWDM) is designed and calibrated for diffuse fields in a reverberation chamber (RC) for personal exposure assessment in indoor environments. The BWDM uses 22 nodes distributed over the torso and measures the incident power density (S-inc) on body for 11 telecommunication bands in the frequency range of 790-5513 MHz. In order to calibrate the measurement device in diffuse fields, a protocol is proposed for on-body calibration of the BWDM. This protocol is applicable to wearable personal exposure meters in general. The BWDM and the proposed calibration protocol are validated in five indoor locations and five frequency hands (the downlink bands at 800, 900, 1800, and 2100 MHz as well as Wi-Fi 2 GHz) using a tri-axial broadband antenna and a spectrum analyzer (SA). The calibration shows that the BWDM has a relatively low measurement uncertainty with a 68% confidence interval on its antenna apertures, in the range 3.4-5.5 dB. A maximum difference of 0.9 dB is obtained for the total exposure in the test areas between the measurements of the BWDM and SA, which is an excellent agreement.},
  author       = {Aminzadeh, Reza and Thielens, Arno and Gaillot, Davy Paul and Lienard, Martine and Kone, Lamine and Agneessens, Sam and Van Torre, Patrick and Van den Bossche, Matthias and Verloock, Leen and Dongus, Stefan and Eeftens, Marloes and Huss, Anke and Vermeulen, Roel and de Seze, Rene and Cardis, Elisabeth and Rogier, Hendrik and Röösli, Martin and Martens, Luc and Joseph, Wout},
  issn         = {1530-437X},
  journal      = {IEEE SENSORS JOURNAL},
  keywords     = {CALIBRATION,EXPOSIMETERS,UNCERTAINTIES,Wearable,radio-frequency,personal exposure,dosimetry,indoor,reverberation chamber},
  language     = {eng},
  number       = {16},
  pages        = {6927--6937},
  publisher    = {Ieee-inst Electrical Electronics Engineers Inc},
  title        = {A multi-band body-worn distributed exposure meter for personal radio-frequency dosimetry in diffuse indoor environments},
  url          = {http://dx.doi.org/10.1109/JSEN.2019.2913309},
  volume       = {19},
  year         = {2019},
}

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